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She may be best known for being the first woman to dunk in an NCAA tournament game and the first woman to dunk twice in a college game—she set both milestones as a redshirt freshman on March 19, 2006.

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(That includes me.) Bill Nye’s decision to debate Ham at the Creation Museum Tuesday night, then, was a puzzling one.

Today, carbon dating is used so widely as to be taken for granted.Scientists across countless disciplines rely on it to date objects that are tens of thousands of years old. An analysis by Heather Graven, a climate-physics researcher at Imperial College London, finds that today's rate of fossil-fuel emissions is skewing the ratio of carbon that scientists use to determine an object's age.Combustion of fossil fuels is “diluting the fraction of atmospheric carbon dioxide containing radiocarbon,” Graven told , the large amount of carbon dioxide in the atmosphere will make new organic material appear to be 1,000 years old based on today’s carbon-dating models.But that assumes that the amount of carbon-14 in the atmosphere was constant — any variation would speed up or slow down the clock.The clock was initially calibrated by dating objects of known age such as Egyptian mummies and bread from Pompeii; work that won Willard Libby the 1960 Nobel Prize in Chemistry.The approach was a sensation when it was introduced.